Devexpress winforms pivot grid

DevExpress WinForms Pivot Grid (PivotGridControl)

PivotGridControl (namespace DevExpress.XtraPivotGrid) is a cross-tabulation control that summarizes bound data across row and column dimensions — like an Excel PivotTable. Fields are assigned to four areas (Row, Column, Data, Filter); the control computes summaries at every intersection.

Before You Start — Ask the Developer

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1. Data source? In-memory List<T>/DataTable, EF/EF Core, an OLAP cube (SSAS), or an Excel file? This decides the binding approach (see the Decision Guide).
2. Which fields go where? Which columns become Row / Column / Data / Filter fields, and which need calculated or grouped bindings (ExpressionDataBinding, GroupInterval)?
3. Summaries? Default Sum, or other SummaryType / custom summaries? Any % of total / running totals?
4. Layout & interactivity? Should end users rearrange fields (Customization Form), or is the layout fixed in code?
5. Formatting? Cell number formats, conditional formatting (FormatRules: bars/scales/icons), and appearance/skin requirements?
6. Scale & responsiveness? Large in-memory data → Optimized engine + UseAsyncMode. Large database table → server mode (EntityServerModeSource) so aggregation runs in SQL.
7. Persistence? Save/restore the layout (SaveLayoutToXml / RestoreLayoutFromXml)?

Reference Files

Topic	File
NuGet setup, first binding, async mode	references/getting-started.md
DataSource types, DataSourceColumnBinding, OLAP, server mode (large data), calculated bindings	references/data-binding.md
Field areas, totals, groups, BestFit, Customization Form	references/view-layout.md
SummaryType, custom summaries, GroupInterval, sorting, TopN, FilterValues	references/summaries-grouping-sorting-filtering.md
FormatRules, PivotGridFormatRule, rule types	references/conditional-formatting.md
PivotGridAppearances, per-field style, CustomDrawCell, skins	references/appearance.md

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Quick Start (Minimal Working Example)

// NuGet: DevExpress.Win.PivotGrid
// Assembly: DevExpress.XtraPivotGrid.v26.1.dll
using DevExpress.XtraEditors;
using DevExpress.XtraPivotGrid;

public partial class Form1 : XtraForm
{
    public Form1()
    {
        InitializeComponent();

        pivotGridControl1.BeginUpdate();
        try
        {
            pivotGridControl1.OptionsData.DataProcessingEngine =
                PivotDataProcessingEngine.Optimized;
            pivotGridControl1.DataSource = GetSalesData();   // IList / DataTable / BindingSource
            pivotGridControl1.Fields.AddDataSourceColumn("Country",  PivotArea.FilterArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Category", PivotArea.RowArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Year",     PivotArea.ColumnArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Sales",    PivotArea.DataArea);
        }
        finally
        {
            pivotGridControl1.EndUpdate();   // always unlock, even if setup throws
        }
        pivotGridControl1.BestFit();
    }
}

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Decision Guide

What data source to use?

Scenario	Approach
In-memory List<T> / DataTable	DataSource = myList + Optimized engine
Entity Framework / EF Core (small/medium)	DataSource = dbContext.Orders.ToList()
Large database table (EF Core / LINQ)	Server mode — DataSource = new EntityServerModeSource { ElementType=…, QueryableSource=…, KeyExpression=… } (aggregates in SQL)
OLAP cube (SSAS)	Set OLAPConnectionString, use MDX paths in bindings
Excel file	ExcelDataSource + .Fill()

Which binding type for a field?

Scenario	Binding class
Direct column from data source	DataSourceColumnBinding("ColName")
Date grouped by Year/Quarter	DataSourceColumnBinding("Date") { GroupInterval = PivotGroupInterval.DateYear }
Numeric field bucketed by N ("group by 5")	DataSourceColumnBinding("Size") { GroupInterval = PivotGroupInterval.Numeric, GroupIntervalNumericRange = 5 } (do not compute buckets in LINQ; field-level GroupInterval is ignored under the Optimized engine)
Calculated expression	ExpressionDataBinding("[Revenue] - [Cost]")
% of total / running total	PercentOfTotalBinding(sourceBinding, CalculationPartitioningCriteria.ColumnValue) / RunningTotalBinding(...)
OLAP MDX calculated measure	OLAPExpressionBinding("MDX expression")

How to color cells?

Scenario	Technique
Global cell type palette	pivotGridControl1.Appearance.Cell.BackColor = ...
Highlight specific field	field.Appearance.Header.BackColor = ...
Conditional per value	CustomAppearance event (no need to redraw)
Full control over rendering	CustomDrawCell event + e.Handled = true
Excel-style rules (bars, scales, icons)	FormatRules.Add(new PivotGridFormatRule { ... })

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Common Patterns

Date hierarchy (Year → Quarter → Month)

var fY = pivotGridControl1.Fields.AddDataSourceColumn("OrderDate", PivotArea.ColumnArea);
fY.Caption = "Year";
((DataSourceColumnBinding)fY.DataBinding).GroupInterval = PivotGroupInterval.DateYear;
fY.AreaIndex = 0;

var fQ = pivotGridControl1.Fields.AddDataSourceColumn("OrderDate", PivotArea.ColumnArea);
fQ.Caption = "Quarter";
((DataSourceColumnBinding)fQ.DataBinding).GroupInterval = PivotGroupInterval.DateQuarter;
fQ.AreaIndex = 1;

// Group them so they move together
var g = new PivotGridGroup();
g.AddRange(new[] { fY, fQ });
pivotGridControl1.Groups.Add(g);

Currency format on a data field

fieldSales.CellFormat.FormatType   = DevExpress.Utils.FormatType.Numeric;
fieldSales.CellFormat.FormatString = "c2";

Sort category by descending sales

fieldCategory.SortBySummaryInfo.Field     = fieldSales;
fieldCategory.SortBySummaryInfo.SortOrder = PivotSortOrder.Descending;

Show Top 5 + "Others"

fieldCategory.TopValueCount      = 5;
fieldCategory.TopValueType       = PivotTopValueType.Largest;
fieldCategory.TopValueShowOthers = true;

Async refresh

pivotGridControl1.OptionsBehavior.UseAsyncMode = true;
pivotGridControl1.BeginUpdate();
// … apply changes …
await pivotGridControl1.EndUpdateAsync();

Save / restore layout

pivotGridControl1.SaveLayoutToXml("layout.xml");
pivotGridControl1.RestoreLayoutFromXml("layout.xml");

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Troubleshooting

Symptom	Likely cause	Fix
Fields not visible after assigning DataSource	DataBinding not set	Use Fields.AddDataSourceColumn() or assign field.DataBinding = new DataSourceColumnBinding(...)
ExpressionDataBinding or window calculations not working	Wrong engine	Set OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized
Appearance.FieldHeader.BackColor has no effect	Skin is active	Disable skin or use CustomDrawFieldHeader event
Grand totals hidden	Options disabled	Set OptionsView.ShowColumnGrandTotals = true
CustomDrawCell fires but cells still look default	Forgot e.Handled = true	Always set e.Handled = true at the end
Format rule not applied	IsValid = false	Verify Measure, Settings, and Rule are all set; check field areas
Excel export loses conditional formatting	Data-aware export mode	Switch to WYSIWYG export mode
Grid does not refresh after data change	DataSource is a plain list	Wrap in BindingSource or call pivotGridControl1.RefreshData()
Performance is slow on large data	Default engine; whole table loaded into memory	In-memory: Optimized engine + UseAsyncMode = true. Database-backed: bind via server mode (EntityServerModeSource) so aggregation runs in SQL

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Constraints & Rules

CRITICAL — follow these rules in every interaction:

1. Verify builds: after code changes, the project must build cleanly before you claim success. If you have a build environment, run dotnet build and report any errors. If you cannot (or must not) execute commands, ask the developer to run dotnet build and share the output — never report success on an unverified build.
2. Do not mix DevExpress package versions: reference the control through the DevExpress.Win.PivotGrid NuGet package — never assembly DLLs by path — and keep every DevExpress package in the project on the same version.
3. Target Windows: PivotGridControl is WinForms-only. Target .NET Framework 4.6.2+ or .NET 8+ with the -windows TFM suffix for SDK-style projects.
4. Batch field changes: wrap bulk field/layout changes in BeginUpdate() / EndUpdate(), and put EndUpdate() in a finally block so the control is never left update-locked if setup throws. Use UseAsyncMode + EndUpdateAsync() for large data.
5. Bindings are required: a field only shows data when its DataBinding is set — use Fields.AddDataSourceColumn(...) or assign a *Binding object. For expression/window calculations set OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized.
6. CustomDrawCell must set e.Handled = true when you take over rendering, or the default cell still paints over your drawing.
7. Adding assembly references (.NET Framework): Resolve the required assemblies via the DevExpress Docs MCP, add the corresponding NuGet package, or — if a visual designer is available — have the developer drag the control from the Toolbox so references are added automatically. Avoid manually editing the .csproj references node to add new assembly references.

Using DevExpress Documentation MCP

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• Fetch: devexpress_docs_get_content(url="<url-from-search>")

Use MCP for: exact SummaryType / PivotGroupInterval / PivotArea enum members, OLAP/MDX binding details, the full OptionsData / OptionsView / OptionsBehavior surfaces, PivotGridFormatRule rule types, custom-draw event arguments, and Excel/PDF export options.

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Source Documentation

• Pivot Grid overview: https://docs.devexpress.com/content/WindowsForms/3409?md=true
• PivotGridControl class: https://docs.devexpress.com/content/WindowsForms/DevExpress.XtraPivotGrid.PivotGridControl?md=true
• Getting started walkthroughs: https://docs.devexpress.com/content/WindowsForms/404088?md=true
• Data Binding: https://docs.devexpress.com/content/WindowsForms/1842?md=true
• Grouping: https://docs.devexpress.com/content/WindowsForms/1846?md=true
• Sorting: https://docs.devexpress.com/content/WindowsForms/1809?md=true
• Filtering: https://docs.devexpress.com/content/WindowsForms/1811?md=true
• Summaries: https://docs.devexpress.com/content/WindowsForms/9384?md=true
• Conditional Formatting: https://docs.devexpress.com/content/WindowsForms/1883?md=true
• Appearance: https://docs.devexpress.com/content/WindowsForms/1843?md=true
• Custom Draw: https://docs.devexpress.com/content/WindowsForms/1817?md=true